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Finding the Fourth Proportional to 348,539.60, 521,513.40 and 255,227.60

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Solution

The fourth proportional to 348,539.60, 521,513.40 and 255,227.60 is: 381,892.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,539.60 : 521,513.40 = 255,227.60 : x
  2. Step 2: Convert to fraction form
    348,539.60/521,513.40 = 255,227.60/x
  3. Step 3: Cross multiply
    348,539.60x = 521,513.40 × 255,227.60
  4. Step 4: Simplify right side
    348,539.60x = 133,104,613,449.84
  5. Step 5: Solve for x
    x = 133,104,613,449.84/348,539.60
  6. Step 6: Final answer
    x = 381,892.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.